Behold! You didst say to one who had received the grace of Allah and your favour: “Retain you (in wedlock) your wife, and fear Allah. “But you didst hide in your heart that which Allah was about to make manifest: you didst fear the people, but it is more fitting that you shoudst fear Allah. Then when Zayd had dissolved (his marriage) with her, with the necessary (formality), We joined her in marriage to you: in order that (in future) there may be no difficulty to the Believers in (the matter of) marriage with the wives of their adopted sons, when the latter have dissolved with the necessary (formality) (their marriage) with them. And Allah’s command must be fulfilled. (33:37)

There can be no difficulty to the Prophet in what Allah has indicated to him as a duty. It was the practice (approved) of Allah amongst those of old that have passed away. And the command of Allah is a decrees determined. (33:38)

O Prophet! We have made lawful to you your wives to whom you have paid their dowers; and those whom your right hand possesses out of the prisoners of war whom Allah has assigned to you; and daughters of your paternal uncles and aunts, and daughters of your metarnal uncles and aunts, who migrated (from Makka) with you; and any believing woman who dedicates her soul to the Prophet if the Prophet wishes to wed her;- this only for you, and not for the Believers (at large); We know what We have appointed for them as to their wives and the captives whom their right hands possess;- in order that there should be no difficulty for you. And Allah is Oft-Forgiving, Most Merciful. (33:50)

You mayest defer (the turn of) any of them that you pleasest, and you mayest receive any you pleasest: and there is no blame on you if you invite one whose (turn) you had set aside. This were nigher to the cooling of their eyes, the prevention of thier grief, and their satisfaction- that of all of them- with that which you have to give them: and Allah knows (all) that is in your hearts: and Allah is All-Knowing, Most Forbearing. (33:51)

It is not lawful for you (to marry more) women after this, nor to change them for (other) wives, even though their beauty attract you, except any your right hand should possess (as handmaidens): and Allah does watch over all things. (33:52)